diff --git a/cde/programs/dtwm/WmWinConf.c b/cde/programs/dtwm/WmWinConf.c
index d917dfc31..5cb576dd9 100644
--- a/cde/programs/dtwm/WmWinConf.c
+++ b/cde/programs/dtwm/WmWinConf.c
@@ -4108,7 +4108,7 @@ StartMarqueeSelect(WmScreenData *pSD, XEvent *pev)
     /* 
      * Set up static variables for succeeding events 
      */
-    if (pev && (pev->type == ButtonPress) || (pev->type == ButtonRelease))
+    if (pev && ((pev->type == ButtonPress) || (pev->type == ButtonRelease)))
     {
 	pointerX = pev->xbutton.x_root;
 	pointerY = pev->xbutton.y_root;